Dyno sheet

I have a set of FPA headers new never opened the box Stan says they are Tri-Y configuration, 1.75” that steps to 2”, they have been Ceramic Coated as well. They fit 2wd FE pickups, from mid 60’s to later 70’s.  I’m near Charlotte NC, 704507 two 453, I paid $1325, I’d like to find an offer above the hit of a 20 percent restocking fee …lmk thanks…selling because the Deal on the 482 never materialized.

On page 8 you said you never felt it nose over…. FE engines never do…do they? 😀 My 390 seems to run clean off the end of the camshaft and is still pulling… seriously no inside paint anymore.  I’m building a HP diesel and was considering it… you must not like what u saw… elaborate plz

Jay or other admins delete if not allowed. I  really don’t have another place to ask and I know there are some smart folks on this board

Diesel Engine I’m working on runs of factory written file that triggers injection based off cam position sensor and crank position sensor   Happens to be Caterpillar 3400/c15/c18 series

Constants are-
Deck height, camshaft, all gear train, connecting rod, ecm file, injectors etc

Variables are-
Stroke and piston pin height

The file is written for a 7.2 inch stroke, I am using it on a 6.75 inch stroke

My question is does the timing change by using it on a shorter stroke. My initial thoughts are no As it’s off of the
crank and camshaft and both engines rotate 360 degrees.  But I’ve been told it advances timing and I’ve been told it retards timing due to shorter stroke.. I’m having trouble wrapping my head around it.  I’d think piston speeds may be different as one is covering longer distance in single revolution. but if someone can shed some intelligent light on this I’d be grateful. Thanks in advance Rob

Will stock engine mounts work on BBM block? Does the side oiler feature effect engine mounts?  1976 F100 is what I’m working with… thanks in advance

I’ve run 390 with 3.00 gear and a small cam for 30 plus years...not ideal but surprises folks as it just goes....55-60 in first,95-100 in second....heavy f100... for your application I know you want period correct but I don’t see reverspattern manual vb as period correct...I’d do junkyard 6r80 all day on this combo

I’m impressed but got few questions my dyno experience is large diesels and I’m not accustomed to seeing dyno on gas engines.  On the second dyno sheet the torque numbers fluctuate up and down not smooth continuous rise or fall.... why is that ?