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Old 06-24-2004, 09:59 AM
savman1 savman1 is offline
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Originally posted by killerformula
.060 350 block with a 400 crank is a 388, I'm building one right now (except this dufus from texas is draggin ***** on my intake ).

I don't think that's the problem, your motor should have plenty of power, before you rip it all apart do some checking and tuning. Use and advance timing light to see what your total timing is, and try adjusting the weights in your distributor. How big are your tires? Bigger tires are going to kill your launch. You should be making good power all the way up to the high 5000 range with that setup.

Did you inspect those heads? MANY problems have been reported with PTL heads. How is the idle on this thing? How much vacuum do you have? Give us some more info, do some checking.

Another thing you might check is your voltage to your coil. Make sure its getting an honest 12+ volts of juice all the way through the RPM band. If it starts dropping off, you might not be making the power.

Most importantly (re-reading your post) what kind of exhaust do u have on this thing? Exhaust is what ties the whole motor together, without it, your cam is working against you. You'll need headers (1 5/8 should work) and duals (2.5 inch is as far as you need to go).


I hate to sound dumb, but I don't know what total timing is. I don't knon anything about adjusting the weights in the distributor. 275 60 on the tires. I didn't inspect the heads, I order them through a machine shop though, maybe he did. If there is a problem, is there any way to find out while the motor is together. It idles great, and I don't know how much vacuum. I haven't checked my voltage to my coil. It has 1 1/4' headers with glass packs. I thought about 1 1/2" Hooker headers(I didn't know if 1 5/8" would fit) with some type of flow master. Where could I take it to get total timing, adjust weights, and chaeck vacuum.

I would love to learn these things, and will if I could watch someone who knew what they were doing. I love this forum, it has really helped me a lot. I hope folks don't get tired of me asking ????. Maybe someday I'll be the one with the answers.
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