Since this is such a popular question I figured I would post the answer...
Corvette fuel filter commonly used in OBS conversions if you are doing a returnless type fuel rail install....
Wix 33737
www.planetautoparts.com $37.93
GM 10299146
Purolator F55493
GF1822
Hastings GF336
PGF336
GKI GF1822
Connectors required to hook to the filter...
Dorman PNs
3/8" female connector DOR-800-121
www.midwayautosupply.com $7.36
5/16" female connector DOR-800-120
www.midwayautosupply.com $7.36
3/8" x 12" double ended male connector DOR-800-155
www.midwayautosupply.com $9.57
You'll need fuel injection quality fuel hose to connect the Dorman quick connects to the old steel fuel lines. I cut both the pressure and return lines about 2" before the factory filter location. Use the rubber fuel injection hose to connect to the new filter. Use 2 hose clamps on each end of the new connections. It's best if you use the hose clamps that have a smooth stainless steel liner to protect the hose. You'll need about 6 feet of hose to connect from the filter to the fuel rail if you have an extended cab. The outlet side of the filter will require the male fitting be cut to about 4"-6" long from one end and then push it into the fuel hose and double-clamp it.
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