Holley Carb set up / tune
01-25-2010 | 08:14 PM
#51
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Joined: Aug 2005
Posts: 6,306
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From: Between A Womans Leggs in IL
Fixx
I put the Crower cam is as it was what I could find. I had trouble finding a decent 731 as Crane had gone while I was looking. I found a used one (ebay) but it's a bit pitted / grooved and I'm not keen to use it. I'm running an Eagle crank and GM dimple rods so i'm confident with the bottom end.
I've just found these heads on Ebay in Havasu but he won't ship overseas. Can I ship them to someone on here and they can forward them to me? I'll cover all the costs.
EBay Big Valve BBC Ovals
I've just found these heads on Ebay in Havasu but he won't ship overseas. Can I ship them to someone on here and they can forward them to me? I'll cover all the costs.
EBay Big Valve BBC Ovals
i have a set of 088 heads ill let go if interested..
Last edited by FIXX; 01-25-2010 at 10:06 PM.
01-26-2010 | 09:35 AM
#52
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Joined: Dec 2007
Posts: 714
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ghostrideryou say your motor about 500ponys ,if so your boat should run about 70mph . put a 23 pitch prop on your boat and you will be runnig low 70 . . hay i built a454 with 365hp mag motor over 500hp on my boat they all told me i be in the 80 mark 
i run 66.7 mph gps 70 on dream speedo . now i had a 540dart block dart pro i heads .dart single plane intake comp cam and now i am runnig over 80mph ....11 just my testing is you need big cubes and tq and ponys so the bottom line for you is put that 23mirage prop on and see wt speed you get . low 70 is pretty good for your set up . try posted your boat and ask wt speed others are getting out of there boat??????
i run 66.7 mph gps 70 on dream speedo . now i had a 540dart block dart pro i heads .dart single plane intake comp cam and now i am runnig over 80mph ....11 just my testing is you need big cubes and tq and ponys so the bottom line for you is put that 23mirage prop on and see wt speed you get . low 70 is pretty good for your set up . try posted your boat and ask wt speed others are getting out of there boat??????
01-31-2010 | 04:27 PM
#53
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Joined: Feb 2009
Posts: 8,356
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From: NW Michigan
I always went back to the 23p Mirage on my 89 Challenger with a mild built 454. I tried numerous props however always went back to the 23. The rpm's in my boat were around 5500 to 5600. The cam was a tad more than the 454/420hp cam.
