Its an ok mild cam...idles with a full 19" of vacuum ...I have run it in a 9.3:1 305 with headers and a stock converter and another now in my current 10:1 360 cruiser with factory exhaust manifolds and an s10 converter .........if I had it to do over I wouldnt have run the s10 converter with it - you simply dont need it in either the 305 or 350. Like I said earlier in this thread I would probably go next time with a little more cam myself like an ELGIN cam part # E1136P 260/265 .462/.470" lift 110* and the s10 converter. To characterize it while driving it - imo it is not a peaky cam at all with a noticeable powerband jump anywhere ...it just keeps building steady power all the way up and has really good off the line tq. I spend most my time cruising at 1800-2k in my driving so I dont care one bit about 5000 rpm or beyond power quite frankly . My focus on this combo was on building port velocity for torque with the small valve smaller chamber TBI heads and nothing else . According to desktop dyno it
falls off a cliff running out of cam and cylinder head at around 4500-5000 much like the TPI Vette did but still has 300 ft lbs at 5k. I really dont feel it dying like Desktop Dyno shows however at those rpms . Again I didnt care about anything beyond that 4500-5000 rpm on this setup. With my undesirable 3:08 ,700R and s10 converter off the line it will light them up. With the better vortec heads supposedly 345 hp 400 tq iirc in the GM crate 350.....FWIW with my setup 10:1 3"6"0 cid ,
small valve (on purpose) TBI swirl port heads, air gap intake , 625 street demon carb, factory exhaust manifolds , no cat , 3" single pipe to a free flowing 7" round magnaflow chambered muffler , desktop dyno (who knows if its accurate ) puts it at
~ 297 horse at 4500 but near 406 tq REALLY EARLY. For a little vintage era discussion think about it the 1990 Chevy
454 SS had 104 more cubes and was
230 horsepower 385 foot-pounds of torque then in 1993 improvements got it to 255 horsepower 4000 rpm and 405 foot-pounds of torque 2400 .If you have ever driven a totally stock L98 TPI Vette like I owned this carbed combo feels sort of like the factory L98 TPI combo -very torquey.
TPI Vette was 245 hp 4000 345 tq at 3200 rpm and those 90's L98 Vettes would scoot for what they were even though the hp was pretty dismal......I have even heard a few fellow Vette guys say for a daily driver they preferred their torquey fun L98 TPI's over the later LT1's which had more hp in the way they felt on the street. I had a brand new in box L98 cam so I ran the L98 cam vs the Ramjet cam on DD and even though the L98 cam had longer durations the Ramjet still produced more power and torque on DD / paper ..probably due to the 109 vs 117 LC more than anything else . F W I W .
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