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Decision made. I added in the cost variable and concluded I'll use KB quench pistons for a 360 at 10.5 compression with my 308 heads and run a Holley Street Dominator that I have. It matters too that the lowest cost suppliers all seem to be out of stock for their 4" stroker kits. I also have...

Wow, lot's of experience coming through! I appreciate all the thoughts and advice. I'm wondering now if the Dual Port on my shelf might be interesting in combo with the 308 heads on a 4" crank. I suspect it won't want to rev high but the throttle response and torque might be crazy. In the...

The Torker II has caught my eye already, and no doubt the runner profiles are similar to the factory intake. My bias is definitely towards the 408/Indy option. For sure, the expected 400+ HP outcome in a light Valiant is fun to ponder. I've run some really hot A-bodies but am now in the mind...

So here's probably an uncommon request. I'm looking for legit experience with low profile single plane intakes on hot smallblocks. Why? I'm playing with the concept of how far I can push "273 Commando at a glance" subterfuge. I'm not a racer anymore but want to pop the hood of my 66 Valiant...

Great discussion with lots of themes, least of all being customers' unreasonable expectations. What I think is most amazing is that contemporary small block MOPAR critiques commonly involve low octane pump gas motors making 400+ horsepower. Oh, woe is me! I've been around long enough to...

@gzig5, Thanks for that update on the Ehrenberg build. I respect his work and was eagerly anticipating the outcome. I expected it might fall slightly short of the 500hp goal given the exhaust manifolds but that's an impressive result regardless.

I'm not sure the points above are entirely clarifying. The Lobe Separation Angle (LBA) of the 318 poly, carried over to the LA evolution is exactly the point when it comes to considering the LA's "bent" lifter/pushrod path to the rocker arms. The 273 as the first LA was specifically made...

My understanding is the misalignment of the lifter angle coming off the cam with the pushrod angle is a legacy of developing the LA smallblock as a quick-fix evolution of the original 318 Poly block so the V8 could be installed in the A-Body (1964) when industry intel told of the pending V8...