I have a 84 Mazda RX7 GSL SE. I finally got her running. Smoke was everywhere after sitting for a year, but now she fires up with a puff and it's gone.

I took her for a test drive after warming up for about 30 minutes in the garage (It's below freezing here). I was fine for the first 1/4 mile and then when I gassed to accelerate, she cut out. Starts fine, but idles rough.

Pulled her back home and started up fine and took off again. This was about 30 minutes after the issue on the road. It seems to be related to heat, but I am not sure where to start looking

 

my guess would be the fuel filter.

 

If it sat for a year the whole fuel system should be cleaned, along with rebuilding the carb

 

GSL-SE is a fuel injected 13B with 2 injectors. my guess would be spark plugs, wires or injector wiring.

 

My bad, missed the GSL-SE

 

I would replace fuel filter and check fuel pressure and go from there