hows the firing order. . you don't hear no plobbing sounds do you ? I can gaurantee your problem is with the timing. If you don't have a timing gun.. do this. . Mark your timing with a felt to what it is right now, line in the middle of the distrubutor bolt to the shaft. Then try retarding it.. your timing is probably just a tad bit off, move it like centimeter clockwise while the cars on. Squeeling gone ? Car reving a bit better ? Play around with that if you don't have a timing gun. Otherwise get it set.. takes 2 minutes with a timing gun.