Minimum electric fuel pump pressure

Hello all. I have a 70 dart with the following motor:

68 340 .040 over
Keith black hypers 9.5 compression
Big valve j heads
Rpm air gap
Comp cam: .454 lift duration @.050 218 lobe:110
Edelbrock 650 Thunder AVS

I have a carb spacer on it now, but still getting the dreaded hot start situation (have to hold the throttle down a quarter, when cranking for it to start after it gets warm) Temps are at 195 all day, in traffic, on the road, etc. I can't add a return easily (no vapor line)

I want to either add or solely use an electric fuel pump for quick starts. Will this one fit the bill for my mild ride? http://www.summitracing.com/parts/crt-p60504

The psi says 4, wasn't sure if that was going to be too low. I am also following this article for install: http://www.how-to-build-hotrods.com/electric-fuel-pump.html

Thanks again for any opinions.