I have a truth teller session scheduled for Wednesday 10th. Feel free to post your guesses and two cents. I’ll be posting the results that afternoon. Here’s the combo.

Low deck
4.25 source crank
Mahle 1.12ch flat top-metric ring pack
6.7 scat rods
11.6 compression ratio
265/269 .660/.652 108lsa installed at 105
1.6 Mancini rockers. Final lift will be .683/.675
Untouched TF 270 heads
Deep port matched Indy 400-2 and a little plenum work
1050/4150 pro form carb
TTI 2 to 2 1/8 step headers
7 qt source pan 1/2 pickup
No Vacuum pump. No tricks. No gas ported pistons, no dry sump.
Just a basic motor anybody can replicate.
What are your thoughts and guesses?
I’d like 1.4hp ci, but my dyno operator said he hasn’t seen it on a combo that wasn’t race gas and this simple.
I’ll be happy if it makes 675.