The computers a bit dim .

. Gettem whereI findem . Goooglee pictures , mainly . or links from there . Mate .
The CS is pretty much a bit like the Chinese Magmum . ( Whereas the Taiwanese Magnum ( and Royal & TT 45 ) ARE OS FSR . Component Interchangeability 99 % )
The tooners got into the Ch. Magnum . Dunno but cut top face of transfer port + Hemi Head ? ? . The Later chunder tiger .46 maybe a Fx clone . dunno . But Mr Smith
said E' raised the toppa the transfer a few degrees . As I was given a box of em , Ex RC , and theres three in there - But Beariongs Needed ! , the one Ive flown in a
60 inch 60 ounce magnum plane ,

dragged it authoritively throough a mild gale on a 12 x 6 prop . But didnt do the ' rich cut downhill ' trick . But didnnt really runaway ,
Either .
So , when we steady the hand & clear out the debri , maybe we'll see if we can ' cut the port ' top edge say 20 thou . ( 1/2 m.m. or so ) and it should be hunky dory .
So , if this is what yours does , thisis wotyerd do , if you had a Bantam .
https://www.bude-electrician.co.uk/pdf/BSA%20Bantam2.pdf
For Sooth :
https://stunthanger.com/smf/engine-set-up-tips/raising-intake-ports/#google_vignetteYour Fing is likely 145 / 148 Ex. BLOW DOWN they whine should be 30 degree or less , To ' switch ' . Which is 15 degree . A Side . But getting it down to 10 ,
on these ' late model ' schneurle ported high speed suckers , is more like it . Thereabouts . IF IT NEEDS IT . Tweeny Thou. for starters . 30 might blow it .
ID drag it out in a rent a wreck , throw it on 65's , Try a 12 x 6 , set at the break . Then try a 12 x 4 , pref a 12 x 4 three blade . And THEN YOULL KNOW
if it seems something like right . Wot We're prattling on about , is ' backing off ' , or ' engine brakeing' Vertical . Down Hill . or better .
The FSR 45 likes a 4 inch , the 40 a 5 inch . The Sf some'd says not fussy ? . But people tried allsorts , initially - they ran 40 FSr etc on 13 x 6 . And set the tank down 1/8 inch .
The ABC Dont Mind a TOUNGE MUFFLER ( and it wont cook the piston ring ) but if it IS ringed , my poisonnle thought is let the heat get out , with a toob muffla .
But that thing should drag 60 ounces around , no sweat . on 10 %Nitro . Even on none , running well . The SF rc which is similar guts , is good , dead stock . Like a LA 46 .
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This is probly the SAME ANIMAL , bar the cylinder timing . Looks like the Soopa Coustome , tooe .
https://sceptreflight.com/Model%20Engine%20Tests/ASP%2046.htmlJust to confuse the issue ;
https://sceptreflight.com/Model%20Engine%20Tests/OS%20Max%2040SF-S%20and%2046SF-S.htmlThese are the ' second generation ' production schneules . Then they went square , then flat head . * to follow Garifore's lead .

* = didnt ' plug in ' . SO assumeitslike the photo . but in those tests theres late square CS's . But follow 4 lines. back . And See , wottle shedoo . And hang on , A runnaway could snap the strings .so outdoors , please .