Tough time idling when restart after short drives

[p914]

So I've got the rebuild pretty well smoothed out except for one little bug on the SDS. We talked with the guys at SDS and here's the situation.

I usually warm my car up about 5-10 minutes before driving. 75 2.0 now rebuilt to 2.7 (as some here have followed). I drive about 15 minutes to the grocery store and go in for about 10 -20 minutes and come back to restart and it starts but doesn't want to idle. Tends to cough and die out.
SDS says that fuel vaporizes at the injectors because the injector is more of a solid mount and air cooled engines run warmer. This is a known issue they have with SDS and air cooled engines.
btw, It's a 4cyl. I start it up and do a bit of pumping on the gas to keep it running (as suggested by SDS) and by the time I drive to the 1st stop light (maybe a minute or so it then has smoothed out and idles fine.)

I'm not using a stock intake. It's a Japanese Celica intake and we tried adjusting the air mixture a bit but to no avail yet. Also am going to get a CHT guage and oil pressure guage soon so I don't have that info yet. It will come with time. But, I don't think there's any serious overheating going on there.

Anybody got suggestions?

Tx
Eddie