dogg rescue Posted May 20, 2016 Share Posted May 20, 2016 I have a 94 ch with an e-7 427, it seems to pull good but has an audible studder in manifold pressure under light acceleration. I installed a boost pressure gauge, it seems to be steady, with boost press. Past 30. Wondering, do I have a bad valve, or an injector over fueling. Quote Link to comment Share on other sites More sharing options...
fjh Posted May 20, 2016 Share Posted May 20, 2016 Do you have a poping sound in the intake? You may have a failed lifter! Quote Link to comment Share on other sites More sharing options...
dogg rescue Posted May 20, 2016 Author Share Posted May 20, 2016 Everything sounds good at an idle, I put my ear up to the air filter, and can not hear any abnormalities. Quote Link to comment Share on other sites More sharing options...
fjh Posted May 21, 2016 Share Posted May 21, 2016 You also may want to check fuel preasure it may be running out of fuel should make 20 psi plus to run proper under load! Quote Link to comment Share on other sites More sharing options...
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