Originally Posted by viperblue72
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.

Untouched TF 270 heads
Deep port matched Indy 400-2 and a little plenum work

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.
Without any calculations, I believe around 700 hp is realistic.
I am thinking the Indy intake with port match to MW gasket will be larger than the TF 270 head opening. That will trip up the flow somewhat.
I look forward to the results, including the max hp RPM.