4800 rpms max then she breaks up . back fires spits sputtters
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87 gt speedpro pistons ,arp bolts,tf stage 1 cam,ported and polish e7 head with new tf springs ,valve job,7/16 stud mount roller rockers ,push rod guids, typhoon intake (gasket matched),70mm throttle body , 75mm summit maf for cold air, bbk cold air kit new computer for mass air swap, headers bossani off road x pipe flowmaster back 3 hook upr quadrant with firewall adj king cobra clutch 3:73 rear 3g 130 amp alt short shifter , k member brace,str tower brace and subframe connectors .
less then 500 miles on combo it is all fresh ,new coil dissi fuel filter and yesterday new fuel pump running at 42 psi and no change could it be computer ??????????
I whant to drive
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87 gt speedpro pistons ,arp bolts,tf stage 1 cam,ported and polish e7 head with new tf springs ,valve job,7/16 stud mount roller rockers ,push rod guids, typhoon intake (gasket matched),70mm throttle body , 75mm summit maf for cold air, bbk cold air kit new computer for mass air swap, headers bossani off road x pipe flowmaster back 3 hook upr quadrant with firewall adj king cobra clutch 3:73 rear 3g 130 amp alt short shifter , k member brace,str tower brace and subframe connectors .
timing at 12 ,it ran great for a while then went to crap pull strong up to 4200 then falls on its face and sounds like it is hitting rev limiter help
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87 gt speedpro pistons ,arp bolts,tf stage 1 cam,ported and polish e7 head with new tf springs ,valve job,7/16 stud mount roller rockers ,push rod guids, typhoon intake (gasket matched),70mm throttle body , 75mm summit maf for cold air, bbk cold air kit new computer for mass air swap, headers bossani off road x pipe flowmaster back 3 hook upr quadrant with firewall adj king cobra clutch 3:73 rear 3g 130 amp alt short shifter , k member brace,str tower brace and subframe connectors .
changed dissi , new from summit racing and I got memory recall tach, stock 1 is way off
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87 gt speedpro pistons ,arp bolts,tf stage 1 cam,ported and polish e7 head with new tf springs ,valve job,7/16 stud mount roller rockers ,push rod guids, typhoon intake (gasket matched),70mm throttle body , 75mm summit maf for cold air, bbk cold air kit new computer for mass air swap, headers bossani off road x pipe flowmaster back 3 hook upr quadrant with firewall adj king cobra clutch 3:73 rear 3g 130 amp alt short shifter , k member brace,str tower brace and subframe connectors .
plugs and wire are new when rebuilt, only about 500 miles since
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87 gt speedpro pistons ,arp bolts,tf stage 1 cam,ported and polish e7 head with new tf springs ,valve job,7/16 stud mount roller rockers ,push rod guids, typhoon intake (gasket matched),70mm throttle body , 75mm summit maf for cold air, bbk cold air kit new computer for mass air swap, headers bossani off road x pipe flowmaster back 3 hook upr quadrant with firewall adj king cobra clutch 3:73 rear 3g 130 amp alt short shifter , k member brace,str tower brace and subframe connectors .
Can you monitor the fuel pressure while it's running up to the point it breaks up? Or is it mounted directly on the fuel rail? If you can monitor it while driving, see if the fuel pressure is dropping at the higher rpms. That's a common problem for the fuel ratio to be right when at idle but lean out as rpms climb.
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87 gt speedpro pistons ,arp bolts,tf stage 1 cam,ported and polish e7 head with new tf springs ,valve job,7/16 stud mount roller rockers ,push rod guids, typhoon intake (gasket matched),70mm throttle body , 75mm summit maf for cold air, bbk cold air kit new computer for mass air swap, headers bossani off road x pipe flowmaster back 3 hook upr quadrant with firewall adj king cobra clutch 3:73 rear 3g 130 amp alt short shifter , k member brace,str tower brace and subframe connectors .
reved motor till it breaks up no load fuel pressure did not drop
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87 gt speedpro pistons ,arp bolts,tf stage 1 cam,ported and polish e7 head with new tf springs ,valve job,7/16 stud mount roller rockers ,push rod guids, typhoon intake (gasket matched),70mm throttle body , 75mm summit maf for cold air, bbk cold air kit new computer for mass air swap, headers bossani off road x pipe flowmaster back 3 hook upr quadrant with firewall adj king cobra clutch 3:73 rear 3g 130 amp alt short shifter , k member brace,str tower brace and subframe connectors .
ya, that was my next venture its all new but I will check
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87 gt speedpro pistons ,arp bolts,tf stage 1 cam,ported and polish e7 head with new tf springs ,valve job,7/16 stud mount roller rockers ,push rod guids, typhoon intake (gasket matched),70mm throttle body , 75mm summit maf for cold air, bbk cold air kit new computer for mass air swap, headers bossani off road x pipe flowmaster back 3 hook upr quadrant with firewall adj king cobra clutch 3:73 rear 3g 130 amp alt short shifter , k member brace,str tower brace and subframe connectors .
4800 rpms max then she breaks up . back fires 
