Rick theres some, or several factors in that software thats not working correctly,
the combo should have zero problem reaching 500 ft lbs and 550 hp plus
Ive built too many engines to see and expect less with that combo
think about this
your similar combo runs a crower 00471 cam with 236 intake duration and ,adding 4 more degrees of intake duration certainly won,t drop the dynamic compression to 7:1
look closely at the cam cards they list a single degree difference at.050 lift for the intake close point, and only 3 degrees more duration at the intake opening
http://garage.grumpysperformance.com/index.php?threads/small-base-circle-cams.3810/#post-72526
keep in mind this is a small base circle cam with asymmetrical cam lobes you must use the .050 lift and duration numbers in calcs,
the difference in effective duration while small,
yet it aids upper rpm breathing slightly,
it certainly has minimal effect on dynamic compression,
thats one reason I suggest installing it at split overlap,
the extra 4 degrees retarded timing helps reduce any tendency toward detonation.
you know that your 406 SBC with its 00471 crower runs well and its
compression is just under the detonation threshold,
if properly tuned.
the crane 119651 will be similar, but should add about 400 rpm
https://www.summitracing.com/parts/...MIisTdgsuL3QIVlrjACh0EnAAjEAAYASAAEgKCTvD_BwE
read link
http://www.hotrod.com/articles/hrdp-1010-what-you-need-to-know-about-mechanical-fuel-injection/
http://www.borlainduction.com/200094-v8-kit-chevy-big-block-35mm-air-horn.html
https://watermanracing.com/product-category/pumps/
https://kinsler.com/Shop/
the combo should have zero problem reaching 500 ft lbs and 550 hp plus
Ive built too many engines to see and expect less with that combo
think about this
your similar combo runs a crower 00471 cam with 236 intake duration and ,adding 4 more degrees of intake duration certainly won,t drop the dynamic compression to 7:1
look closely at the cam cards they list a single degree difference at.050 lift for the intake close point, and only 3 degrees more duration at the intake opening
http://garage.grumpysperformance.com/index.php?threads/small-base-circle-cams.3810/#post-72526
keep in mind this is a small base circle cam with asymmetrical cam lobes you must use the .050 lift and duration numbers in calcs,
the difference in effective duration while small,
yet it aids upper rpm breathing slightly,
it certainly has minimal effect on dynamic compression,
thats one reason I suggest installing it at split overlap,
the extra 4 degrees retarded timing helps reduce any tendency toward detonation.
you know that your 406 SBC with its 00471 crower runs well and its
compression is just under the detonation threshold,
if properly tuned.
the crane 119651 will be similar, but should add about 400 rpm
https://www.summitracing.com/parts/...MIisTdgsuL3QIVlrjACh0EnAAjEAAYASAAEgKCTvD_BwE
read link
http://www.hotrod.com/articles/hrdp-1010-what-you-need-to-know-about-mechanical-fuel-injection/
http://www.borlainduction.com/200094-v8-kit-chevy-big-block-35mm-air-horn.html
https://watermanracing.com/product-category/pumps/
https://kinsler.com/Shop/
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