Speedmaster magnum inspection w/Justin

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New intake flow numbers @28 w/ 1.94 valve.
.100-66.2
.200-136
.300-193
.400-230
.450-248
.500-250
.550-251
.600-245
Pinch is as big as .872... but i did some clay placement testing and found the pinch , while opening it helped to a point..itself wasn't a hindering factor... i made it smaller at one point at the floor and picked up a lot of stability and gain in mid/high lift flow. Its equalizing and transitioning the air speed.
Regardless...this is more where i wanna be with what im using them for=my 96 4x4 There is one thing ill change to the others and i believe that will have them in the 260 range just after .500 . Keep 8n mind this is a diff port than the one touching 260 already. I might bring the chamber back at the short turn a little more but I think at this point what I'm doing with them they're pretty stout.
I'll get a chamber volume stock and modified and start posting all that little bits of stuff up. I might just start another thread where I just throw it all in the first post and make it really easy to read.
Thanks to those following this..

Good lookin numbers, tosser. lol
 
Did a cranking check on my truck today with above heads at 60.5cc and 61cc each after milling .020

170-175lbs cranking warmed w/throttle blades open.

Keep in mind..302k and stock cam still.

Plugs are telling me I need to run 89 instead of 87. Faintest few of specs on porcelain. Piston tops look good.
I'm happy.

20220311_122657.jpg


20220311_122109.jpg
 
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