Best and easiest clutch test is to drive along in 3rd or 4th approx 2500 RPM, clutch fully engaged (pedal up) and increase throttle quickly. If RPM’s increase and speed does not; your clutch is ill.
Geoff
1955 2nd Series 3600 235 cid, 4 sp. - Current 1979 Chevy K10 350 cid 4 sp -Sold 1955 2nd Series Wide Window 283 cid 3 sp - Totaled