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08-15-2019, 04:44 PM | #31 |
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Re: how far under in stock at Indy to qualify
OK....-.885 under !
Last edited by X-TECH MAN; 08-16-2019 at 09:52 AM. |
08-15-2019, 05:12 PM | #32 |
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Re: how far under in stock at Indy to qualify
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08-15-2019, 06:56 PM | #33 |
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Re: how far under in stock at Indy to qualify
I'm good
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08-16-2019, 12:45 AM | #34 |
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Re: how far under in stock at Indy to qualify
128 -.896
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08-16-2019, 09:50 AM | #35 | |
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Re: how far under in stock at Indy to qualify
Quote:
I have done the same type of work on bracket heads in the past without blasting the heads with media to hide the work. It has always been worth approx. 3 tenths or a little more. The MPH always went up also. Certain brands of heads have seen an improvement of 4 to 5 tenths by correcting the OEM C.C.'s with the work.. The bracket racers in Maryland near Budds Creek used to think I could walk on water...LOL. Some of their stuff was pretty much junk to start with though. Its been about 12 years since I did any of that stuff. I got tired of my dinner tasting like cast iron, retired and moved to Fla. . I also know it for a fact several guys are still doing it. I used to touch up (freshen up) the valve jobs on their heads and have seen what was done. I will NOT mention names because I do not want to start a war. Its not fun anymore at all ! Last edited by X-TECH MAN; 08-16-2019 at 10:03 AM. |
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08-16-2019, 10:20 AM | #36 |
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Re: how far under in stock at Indy to qualify
I'll go 78.under for #128.This year could be interesting!. gsa612
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08-16-2019, 01:31 PM | #37 | |
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Re: how far under in stock at Indy to qualify
Quote:
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08-16-2019, 01:39 PM | #38 |
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Re: how far under in stock at Indy to qualify
90 +
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08-16-2019, 02:31 PM | #39 |
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Re: how far under in stock at Indy to qualify
It depends on the make and model of the head. Chevy not so much. 383/440 heads a lot. Just filling the heat riser on the 383/440 MOPAR was worth about 24 HP on the dyno. Filling the dual heat risers helped a lot on those type of heads like Pontiac.. Some Fords are not so great either. I have not looked at the newer FI stuff. Remember this was with the older cast iron heads.
Last edited by X-TECH MAN; 08-16-2019 at 02:40 PM. |
08-27-2019, 07:36 PM | #40 |
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Re: how far under in stock at Indy to qualify
Giving the weather we will have....it will be really close to -1. under to get in the Big Go this year.
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