So i just finished my build. I load up start up calibration for the maf and it wont start.

Things i did
Pulled engine, took off head did head studs.and tt gasket. 550cc rx7 injectors, 340 fid pump, aem v2 blah blah.

Drop everything in.... everythings in right.

I have fuel pressure, pump primes, car cranks but doesnt start. Plugs are new, new dizzy rotor bc mine looked like ****. New igniter and new coil. Getting "weak" spark.

Timing.should.be good enough to start. Grounds i know of are 2 on lower runners. One on tranny. One on rear of motor to firewall. One from batter negative. Anyone got advice? This possibly just tuning/ syncing timing issue?