Guess my ET....

OK.... just formulated an offseason plan.
Race season is over for me
Here is what i have now...
Bone stock 360 shortblock
Stock rods, crank, replacement cast factory spec pistons(+30)
Howards mech flat tappet cam( 260/264 565/ 565... on a 106, in at 102
Dougs headers(d453)
Eddie heads, modest port work, would guess maybe 270-275 max flow... 58cc
Airgap
950 hp
4.30 gear
28 drag radial
904
5k flash vert
3300 ish with driver
Typical ET’s... 11.30’s in good spring/ fall air, 11.50/11.55 dead of summer air.

New combo
418 shortblock+40 340 block, 4 inch forged Scat crank, Scat rods, Forged flattop pistons( Icon) that are somewhere 5-7 above deck( have to check again). Likely use( after verifying clearance) a 45 cometic gasket. Somewhere 12.5/ 12.7 compression i am thinking
Gasket matched Weiand excellerator
Same carb
Same cam
Same heads
Same gear, tire, vert

any guesses on ET... good air/ summer air?


.40 quicker in summer air. (11.10)
.40 quicker in good air. (10.90)