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02-13-2009 07:12 AM #2
someone told me there could be a problem using a cam with the tbi. we put in the edelbrock 2102 for (86 and older) maybe I should have used the 3702 for 87 and newer TBI. Here are the specs on the two camshafts from edelbrock's site. Remember I'm going to go with the TBI. Think we'll have a problem?
2102
ENGINE: CHEVY 265-350 V8
RPM RANGE: 1500-5500
1. Duration at 0.006" Lift: Intake: 278° Exhaust: 288°
Duration at 0.050" Lift: Intake: 204° Exhaust: 214°
Lift at Cam: Intake: 0.280" Exhaust: 0.295"
Lift at Valve: Intake: 0.420" Exhaust: 0.442"
Timing at 0.050" lift: Open Close
Intake: 5° ATDC 29° ABDC
Exhaust: 44° BBDC 10° BTDC
Centerlines: Lobe Separation - 112° Intake Centerline - 107°
CAUTION: Use Performer-Link Timing Chain and Gear Set, #7800. Do not use late model timing sets. They are machined in a retarded position and are not recommended for this camshaft installation. Edelbrock Performer-Link True Rolling Timing Sets feature three keyways for specific timing selection. Always use the “0” or straight-up timing mark when installing Performer-Plus camshafts with Performer-Link Timing Sets.
Use only Sure Seat Valve Springs, #5802 or 5902 Use stock ratio rocker arms only
3702
ENGINE: CHEVY 305-350 V8 T.B.I. & LG-4
RPM RANGE: 1500-5500
1. Duration at 0.006" Lift: Intake: 268° Exhaust: 288°
Duration at 0.050" Lift: Intake: 194° Exhaust: 214°
Lift at Cam: Intake: 0.265" Exhaust: 0.294"
Lift at Valve: Intake: 0.398" Exhaust: 0.442"
Timing at 0.050" lift: Open Close
Intake: 10° ATDC 24° ABDC
Exhaust: 44° BBDC 10° BTDC
Centerlines: Lobe Separation - 112° Intake Centerline - 107°
CAUTION: Use Performer-Link Timing Chain and Gear Set, #7800 . Do not use late model timing sets. They are machined in a retarded position and are not recommended for this camshaft installation. Edelbrock Performer-Link True Rolling Timing Sets feature three keyways for specific timing selection. Always use the “0” or straight-up timing marks when installing Performer-Plus camshafts with Performer-Link Timing Sets.
Use only Sure Seat Valve Springs, #5802 or 5902 Use stock ratio rocker arms only
most of the difference is in the intake side, the olde style has a little more lift, and little bit bigger #'s on the duration. and intake timing. Think we better change cams?Last edited by SBMarks3; 02-13-2009 at 09:53 AM.
Dammit, another good ol boy gone. Condolence to the family. RIP Mike
RIP Mike Frade, aka 34_40