12.5 at wot with a non intercooled roots setup will be a recipe for a burn down. He needs to be quite a bit richer at wot . Us heavy vee bottom guys need to be able to stand on it for minutes, not seconds.

I agree if your running the wrong spark plugs and the timing is locked out. Running across Biscayne bay from Miami to Gilbert's at 150 plus takes a little more than a few seconds. If you tune the engines right you don't need 6 LB of boost anyway. Heat soaking an engine will kill any engine and fixing with to much unburned fuel will make it an oil burner in less 20hrs.

im not trying to be a diik but how many blown engines have you tuned with a air fuel gage?if he follows your tune up he will be on the road to rebuild,just saying!

I`m sorry man but the idle air circuit has nothing to do with primary or secondary jetting or any AFR numbers above idle. Ive got it as lean as it will go without dying when shifted and its at low 12`s at idle.. 14.7 aint happening.

Was hoping someone with some actual carb tuning experience would have chimed in (not counting Mild or Tkat of course) no biggie, we`ll get this figured out. I`m going to restrict the fuel dump thru the power valve at 4K and see what happens.

The advice I got from Nickerson today was to add a secondary power valve.. umm ok cause the primary valve fuel dump just wasn`t enough??



What in the world????

please tell me how your,or any boat can run for hours at 150 mph with less than 6 lbs boost.

Someone should tell Tatermac that he forgot to log off and now his 15 year old is giving out engine advice on the interwebs..

SKATERMAC,im always trying to learn,what engines do you have in your skater,and can you give some info,like what type of power adder and what your total timing is set at?

Im sure you would try listening

:QUOTE=ICDEDPPL;3988834]Someone should tell Tatermac that he forgot to log off and now his 15 year old is giving out engine advice on the interwebs..[/QUOTE]

well that is some funny chit right there

I think he is in the piston business