Guest Anonymous Posted April 8, 2003 Share Posted April 8, 2003 maybe someone can help me on this one, i've been told that the newer dp holleys have powervalve blow out protection, how do i know that my model is the newer one? another thing, is it true if the car back fires then that means the powervalve is blown? phuc Quote Link to comment Share on other sites More sharing options...
Mike C Posted April 8, 2003 Share Posted April 8, 2003 Only occassionally will a powervalve blow on a backfire. Usually old age failure is more common. The cure is a ball bearing in the PV passage that seals off under a backfire. Do a google search for how to mod a Holley for PV protection and you should find it. Quote Link to comment Share on other sites More sharing options...
Guest zfan Posted April 9, 2003 Share Posted April 9, 2003 I have had the back fire problem in the past and have not blown the power valve as of yet! Mines a 750 dp. Mike Quote Link to comment Share on other sites More sharing options...
z ya Posted April 9, 2003 Share Posted April 9, 2003 Phuc, Good to hear you still have your Z. Give me a ring and we can try my carb on it to see if its really your problem. Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted April 9, 2003 Share Posted April 9, 2003 Ron, I've been trying to get a hold of you but I haven't bothered to leave a message If it's no trouble I'd like to try and swap your carb on mine, you have a 750 dp isn't that right? Maybe you can help me with my misfiring problems as well How bout friday after 2pm? Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted April 9, 2003 Share Posted April 9, 2003 Ron, I've been trying to get a hold of you but I haven't bothered to leave a message If it's no trouble I'd like to try and swap your carb on mine, you have a 750 dp isn't that right? Maybe you can help me with my misfiring problems as well And i'd love to check out your rims for sale, no $ now but would like to fantasize how they would look on mine. How bout friday after 2pm? Quote Link to comment Share on other sites More sharing options...
z ya Posted April 10, 2003 Share Posted April 10, 2003 Sounds fine. I have to go and do some things till about 3 or 4ish. But after that we can play with it . Give me a ring. Home 209 952 7680 cell 209 609 4133 Quote Link to comment Share on other sites More sharing options...
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