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#1 |
Junior Member
Join Date: Apr 2014
Posts: 43
Likes: 8
Liked 26 Times in 7 Posts
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In the stock no changes column
2 70 GTX 390 HP 1 @ 422 and 1 @ 393 ? |
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#2 |
Member
Join Date: Sep 2007
Location: NJ
Posts: 252
Likes: 6
Liked 23 Times in 13 Posts
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393 HP is the steel head the 422 HP is the bogus approved aluminum head that won't pass tech without changing valves, seats, guides,oh yea the CC's are way off exhaust & intake so milling int. side makes it fitting the intake a little tricky, exh. side careful not to mill into valve cover holes/bolts, just kidding, but no epoxy, just shoe boxes of money, Can be done but advantages/gains AAH!!!
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Frank Bialas 1570 STK |
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#3 |
Live Reporter
Join Date: Oct 2004
Location: Hickory, Ky
Posts: 10,643
Likes: 1,941
Liked 10,731 Times in 2,233 Posts
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Iron heads make more power^^^^^^
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#4 |
Senior Member
Join Date: Oct 2013
Location: lakewood, co
Posts: 558
Likes: 302
Liked 147 Times in 54 Posts
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Merry Christmas for some from NHRA. Not as much for
others.
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Randy Hyman. Lakewood co. stk 5394 P/SA |
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