Our Stroker Build - Looking for comments good or bad!!

Here’s the plan for our build. Feel free to make comments good or bad. Maybe add things that I may have not thought of. I’m a couple weeks away from getting serious so nows a good time to cover all the bases.

I have not purchased anything but an only 1978 complete 440 to steal the block from. AC still worked.

First the other info:
It’s going in a 1979 Lil Red Express used only for Bracket Racing
Truck weighs around 3850lbs
727 with approx. 5000 ATI stall (flashed to 4500 with the old 440)
9” Strange with spool and 4.56 gears
29.5 x 10.5 slick

Now the plan for the engine… keep in mind we wrecked our old short block so we are re using what we can.
Re-using Pro System 1100 Dominator
Re-using Indy 4500 Single Plane
Re-using Indy SR Heads, Fully Ported, 60cc Chambers, Harland Sharp Full Roller Rockers.
78 440 Block
Re-use the steel main caps from the other block.
Block bored 30 over (4.35”)
440 Source 512 kit. (4.25 Stroke, 7.10” Rod)
-27 dish piston.
Calculated with my 60 cc chambers I’m thinking right around 11.5:1 compression.
Ends up at 505ci
Cam… I’ve been talking to Comp and he recommends this custom grind… 265/274 .650/.630 on a 110 lobe separation. Open to suggestions as I am not a cam expert…. Off the shelf he said 23-705-9 which is 252/263 .660/.660 on a 108 lobe separation.
Roller chain with multi keyway.
I’m thinking of going with a main stud girdle.
Going to fit the pan with external oil line and a new pump. Not sure which pump to go with, haven’t researched pumps yet.

We are hoping to go 10.5 in a 3850 lb truck… anything better would be gravy, any less a bit disappointing.

Have at it, hold no punch, let me know what you think or what I’ve forgotten.