Thanks. I'd also mention here that when you look at what's going on with a pushrod equipped flat tappet V-8 engine using valve springs approaching 400 pounds open pressure, which isn't all that uncommon these days, is like having 16 fat guys standing on your pushrods!
It amazes me that anything before the valve springs lasts more than ten minutes cruising down the highway at 2500rpm s or so.........and as many have found out sometimes these parts don't hold up very long........
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73 Ventura, SOLD 455, 3740lbs, 11.30's at 120mph, 1977 Pontiac Q-jet, HO intake, HEI, 10" converter, 3.42 gears, DOT's, 7.20's at 96mph and still WAY under the roll bar rule. Best ET to date 7.18 at 97MPH (1/8th mile),
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