Re: Street SBC cam - ideal LSA opinions???
Considering the gears, I would run a cam with no more than about 6* split, on a 108 to 110 lsa. You need as much low and midrange as you can get because of the gears and relatively low stall convertor. The comp cams 260AH-8 will absolutely run rings around the summit K1103 in this application...I've used both and there is no comparison under 5K rpms in an under 9.0-1 compression 350. The 1103 will pull harder on the top end, and thats about it. Either cam will ping in your setup with the small chamber 305 heads/9.7-1 compression unless you are conservative with the timing curve, but then you are giving up power/torque.
The 1103 will pull to 6K rpms with fresh stock valvesprings in a 350...the lobes are pretty gentle.
The comp 268HE will work pretty nicely with this setup too, as would the crane 272 energizer, or the Isky 264 Mega cam.
'86 chevy 3/4 ton...9.4-1 355, vortec heads, vortec performer intake, 600 edelbrock, xe268, headers, duals w/turbo mufflers, BTO 700R4, 3.23 gears
'77 nova, 388, 200cc pro-toplines, holley 300-36, 750 edelbrock, comp 294s, 10" ATI, 3.73's
'83 ford F-150 XLT...351w, C-6 and 3.55's.