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Original Message
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| RE: How much power and other questions |
| By gerry - 01/22/2001 8:15:56 AM; IP 208.217.67.189 |
First off, Anthony, you shouldn't be running into pre-ignition with only 31degrees total advance. I suspect the timing you are reading off the balancer is false. It is common for the outer ring to slip and give you an incorrect reading. Unless you can verify timing, it is a better situation to time the engine with a vacuum gauge and road testing, then use the balancer as a baseline reference. But I don't think timing is your problem. Ten to 12 degrees initial with only 21 centrifugal even with your quicker advance rate isn't getting you anywhere near danger. Without the vacuum advance and the iron heads, you could easily use 12initial. With aluminum heads, you can go 14-16 initial. Your detonation may be and is most likely a result of your carb going lean on top. The only way to know for sure without thermocouples is to start working the jets and rods to try to cure the detonation. I would suspect that your problem will be in either fuel delivery (weak pump or poor lines) or in the carb itself. That Crane HMV-278-2NC cam is a very nice performer in the FE, with the wide LSA it should easily carry you to 6K rpm...making power all the way. The mid-range is a little softer than the tighter cams, but I've found it to be a better all around performer.
I really hate to to the guestimate on how much power...but I'll go out on a limb here and say that with a very good tuneup (fix your detonation problem), you should easily be nudging the 400 hp level at the flywheel level. I would look into getting your exhaust up to the 2.5" level all the way through though. Your system will only flow to the level of its smallest restriction. In your case, you could have 3" pipes running out the back, but if you start at 2", then that is the capacity that the system will flow. You should easily surpass the 400 hp level with the Edelbrock RPM heads.
I can't offer an opinion on your squeeze question. |
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