My car has trouble starting sometimes. It has to crank over for 3-4 seconds when it has been sitting for a while. When I first bought the car i had the local shop check it out and they said it had a leaky injector or two. so now I'm fed up with the problem. What size injectors are needed for a 91 350 with almost no mods. should i stay stock or get biger ones with an AFPR. I will eventually be upgrading engine components when i can afford to. Thanks in advance.

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91 Z28, 64k mi.,k+ns, chip, flows, fresh black paint, gts blackouts all around, 18" chrome irocs, kybs, eiback 1" springs, global west sfcs, nu stereo/sub/amp, red dome/guage lights, and plenty more to come.

 

go with the stock 22# injectors and bump up the fuel pressure with the AFPR.
If you go with bigger injectors,you will run rich,unless you get a custom chip.
Nitro Don


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1990 Trans Am WS6
305TPI 700R4

ENGINE:
150hp NOS kit
March underdrive pulleys
Edelbrock headers(JetHot)
Mac off-road pipe
Flowmaster exaust
Jacobs ultra coil
K&N filter
Fulley ported base,
runners,& plenum
Crane AFPR
Hypertech airfoil
Crane 1.6 rockers
210/220 .533/.544 Cam
W/P Torquer heads
Edelbrock TPI Base
Edelbrock TI Runners
Edelbrock 52mm T.B.
TRANSMISSION:
Richmond 3.73's
Auburn posi
B&M Mega shifter
B&M Transpak
Vette servo
B&M 2400 converter
TCI Trans Rebuild
Nitto Drag radials
FUTURE MODS:
The 700R4 is DEAD!!
Neeed to rebuild AGAIN!!
BEST RUN:
12.48 @ 109.23 MPH
(with stock heads,cam,intake,and crappy Pep Boy's tires)